Use 'depends_on' value for enablements checks only if its type is boolean

bin/FIJI.pm

@@ -202,7 +202,8 @@ logo_end
 #                   where values present in the input are not validated at all.
 #    - depends_on   (optional) specifies the key of another constant.
 #                   The respective constant is only relevant (and thus required as input)
-#                   if the value of the referenced constant is true.
+#                   if the value of the referenced constant is of type boolean and its value true.
+#                   Additionally, the values function will get the value of the depends_on setting passed.
 #    - group        (optional) specifies how to group this value in output. Value will not be displayed if undef
 #    - order        (optional) specifies how to sort this value in output group
 #    - noedit       (optional) display value, but don't allow to alter
@@ -860,8 +861,9 @@ use constant FIUMAP => \%fiumap;
 #                   where no value must be present in input (e.g. ID is only necessary while downloading).
 #    - gui_modes    (optional) specifies in which mode of {manual,auto,random} this key will be displayed in the GUI
 #    - depends_on   (optional) specifies the key of another constant.
-#                   The respective constant is only relevant (and thuse required as input)
-#                   if the value of the referenced constant is true.
+#                   The respective constant is only relevant (and thus required as input)
+#                   if the value of the referenced constant is of type boolean and its value true.
+#                   Additionally, the values function will get the value of the depends_on setting passed.
 #    - order        (optional) specifies how to sort this value in output group
 #    - default      (optional) default value if not given in file and not determinable otherwise.
 #                   Can either be a scalar or a function pointer expecting a FIJI settings reference.

bin/Tk/FIJISettingsViewer.pm

@@ -1614,7 +1614,7 @@ sub _validate_entry {
     if (defined($map->{$name}->{'depends_on'})) {
         $dep_ref = \$self->{'settings'}->{'design'}->{$map->{$name}->{'depends_on'}};
         # don't validate if this entry is disabled
-        if ($$dep_ref == 0) {
+        if ($map->{$name}->{'type'} eq 'boolean' and $$dep_ref == 0) {
             $logger->debug("Don't validate $name as it is disabled.");
             $self->_indicate_warning($widget, 0, $map, $name);
             return undef;